application PU-655 HDI hydrophilic aliphatic polyisocyanate is used as curing agent component of waterborne two-component polyurethane system Model strong> PU-655 Type strong> Hydrophilic aliphatic polyisocyanate based on hexamethylene ... 11/20150PU-655 HDI hydrophilic aliphatic polyisocyanate is used as curing agent component of waterborne two-component polyurethane system